The ARD Automatic Rescue Device (ARD Automatic Rescue Device) is a safety-critical elevator emergency system designed to automatically move the elevator car to the nearest landing and open the doors when a power failure occurs.
It ensures that passengers trapped inside the elevator can safely exit without manual rescue operations, reducing downtime and safety risks in residential, commercial, and industrial buildings.
Product Function
The ARD Automatic Rescue Device operates in real-time monitoring mode during normal elevator operation.
When a main power failure occurs:
Detects power outage instantly
Activates emergency battery inverter system
Controls elevator motor using original drive system
Moves car to nearest landing floor at low speed
Automatically opens car and hall doors
Restores standby state after rescue completion
This process is fully automatic and requires no external intervention.
Engineering Working Principle
The system is built on a microprocessor-based control architecture.
Key logic flow:
Continuous voltage monitoring of main power supply
Instant detection of abnormal power interruption
Switching to backup battery inverter system
Controlled low-speed torque output to elevator motor
Positioning to nearest safety landing zone
Door opening signal release via control circuit
The ARD Automatic Rescue Device ensures stable rescue behavior even under unstable grid conditions.
Technical Specifications
Main Power Input
• Voltage: Three-phase AC 380V ±15%
• Frequency: 50Hz / 60Hz
Output System
• Output Voltage: Three-phase AC 380V ±10%
• Efficiency: ≥0.85
• Output Frequency: 50Hz / 60Hz (rated 50Hz)
• Waveform: Pure sine wave
Battery System
• Type: Valve-controlled sealed lead-acid battery
• Rescue duration: 3–15 minutes (adjustable)
• Charging time: ≥6 hours
• Automatic charging management included
Environment Conditions
• Operating temperature: 0°C ~ 45°C
• Relative humidity: <90% (non-condensing)
• Noise level: ≤45 dB
• Installation altitude: ≤2000 m
Model Selection Table
|
Model |
Inverter Power |
Battery Configuration |
Phase |
Frequency |
Oil Qty |
Weight |
Size (mm) |
|
MST-ARD-3P5.5E |
5.5KW |
12V7AH × 3 |
3-phase |
50/60Hz |
3 |
21KG |
402×305×160 |
|
MST-ARD-3P7.5E |
7.5KW |
12V/9AH × 3 |
3-phase |
50/60Hz |
3 |
21KG |
402×305×160 |
|
MST-ARD-3P11E |
11KW |
12V7AH × 4 |
3-phase |
50/60Hz |
4 |
23KG |
402×305×160 |
|
MST-ARD-3P15E |
15KW |
12V/9AH × 4 |
3-phase |
50/60Hz |
4 |
26KG |
402×305×160 |
|
MST-ARD-3P18.5E |
18.5KW |
12V/9AH × 4 |
3-phase |
50/60Hz |
4 |
26KG |
402×305×160 |
|
MST-ARD-3P22E |
22KW |
12V7AH × 6 |
3-phase |
50/60Hz |
6 |
45KG |
538×400×160 |
|
MST-ARD-3P30E |
30KW |
12V/9AH × 6 |
3-phase |
50/60Hz |
6 |
47KG |
538×400×160 |
System Compatibility & Integration
The ARD Automatic Rescue Device is designed for traction elevator systems using 380V drive architecture.
Compatible Integration Systems
Monarch / NICE control systems
Inovance drive systems
STEP elevator controllers
Generic OEM traction control cabinets
Integration Notes
Control signal interface supports standard elevator rescue input logic
Parameter tuning may be required for non-standard OEM controllers
Wiring diagram provided based on customer controller model
Safety Testing & Quality Assurance
Each ARD Automatic Rescue Device is produced under strict quality control procedures:
Testing Process
Full-load inverter simulation test
Power failure activation response test
Battery discharge cycle verification
Continuous 24-hour stability operation test
Output waveform inspection (sine wave verification)
Quality Control System
Incoming component inspection
PCB-level functional testing
Batch traceability code system
100% final inspection before shipment
This ensures stable performance in real elevator emergency conditions.
Customization Options
The ARD Automatic Rescue Device supports engineering customization:
Power rating selection (5.5KW–30KW)
Battery configuration adjustment based on travel distance
Rescue time optimization (3–15 minutes)
Control interface adaptation for different elevator systems
OEM wiring configuration and labeling support
Packaging & Delivery
Export-grade carton with foam protection
Wooden crate for bulk shipment
Moisture-proof and shock-resistant packaging
Sea freight / air freight / express supported
Installation manual and wiring diagram included
Applications
Frequently Asked Questions
Q: What is the MOQ for ARD Automatic Rescue Device?
A: MOQ is 1 set for sample orders, with flexible pricing for bulk procurement.
Q: What payment terms are available?
A: We support T/T bank transfer, Western Union, and Trade Assurance.
Q: What trade terms do you offer?
A: EXW, FOB, and CIF terms are available depending on shipment requirements.
Q: What is the delivery time?
A: 3–7 days for standard models in stock, 7–20 days for customized orders.
Q: Is the ARD Automatic Rescue Device compatible with OTIS or KONE systems?
A: Compatibility depends on control system configuration; technical evaluation is required before integration.
Q: Do you provide wiring diagrams before purchase?
A: Yes, we provide customized wiring diagrams based on your controller model.
Q: What is the warranty period?
A: 12 months warranty for all ARD Automatic Rescue Device units.
Q: How is product quality guaranteed?
A: Each unit is 100% tested under full-load simulation before shipment.
Q: What packaging method is used?
A: Standard export carton with foam protection, wooden case for bulk orders.
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